Lamp and base



Aug. 26, 1924. 1,506,377

' J. MANUEL.

LAMP AND BASE Filed Jan. 25 1924 li a/mdor 62/0072 7/LCML0LQL PatentedAug. 23, 1924.

PATENT OFFICE.

JACOB MANDEL, OF CHICAGO, ILLINOIS.

LAMP AND BASE.

Application filed January 25, 1924. Serial no. 688,432.

7 '0 all whom 2'25 may concern:

Be it known that I, JACOB IVLANDEL, a citizen of the United States,residing at Chicago, in the county of Cook and State of Illinois, haveinvented certain new and useful Improvements in Lamps and Bases, ofwhich the following is a specification.

Heretofore in the manufacture of lamps, especially pedestal or floorlamps, in order to give the base sufficient weight to prevent the lampfrom being easily knocked over, it has been customary to attachanchoring plates or elements to the base to add the necessary weight.

It is one of the objects of the present in vention to provide for lampsof this character an improved base which is made separate 01' detachedfrom the pedestal and constructed preferably of metal, the lower surfaceof the base being supported above the supporting surface or floor adistance suliicient to permit the light cord or wire to pass under thebase.

A further object is to provide an improved base of this character havinga threaded opening therethrough to receive a threaded end of thepedestal, the threads 011 the pedestal and in the opening in the basebeing of different pitch, one series being greater than the other sothat when the parts are connected together the adjacent faces of thethreads will be slightly wedged to insure a tight fit and also to insurethat the pedestal will be maintained perpendicular to the base.

A further object is to provide an improved construction of thischaracter which will be simple, durable, cheap in construction andeffective and efl icient in operation.

To the attainment of these ends and the accomplishment of other new anduseful objects as will appear, the invention con sists in the featuresof novelty in substantially the construction, combination andarrangement of the several parts hereinafter more fully described andclaimed and shown in the accompanying drawing illustrating thisinvention and in which Figure 1 is a side elevation of a pedestal orfloor lamp constructed in accordance with the principles of thisinvention.

Figure 2 is an enlarged view partly in elevation, partly in section,partly broken away and with the parts separated, showing the manner ofconnecting the pedestal and base together.

Figure 3 is a bottom plan view of the base.

Figure 4 is an enlarged detail fragmentary view in section, showing themanner of connecting the threaded parts together.

Referring more particularly to the draw ing the numeral 10 designatesgenerally the base which is constructed separately from the pedestal 11.

The base 10 is constructed of some suitable heavy material preferablyiron and znay be of any desired size and configura- The base is providedwith a central aper ture or opening 12 having threads 13 therein, andthe base is preferably provided with a plurality of supporting feet orprojections 14 which serve to hold the lower.v

edge 15 of the base elevated above the floor or supporting surface 16,as shown more clearly in Figure 1.

The opening 12 may be of any desired diameter and the portion of thebase 10 which surrounds the upper face of the opening is inclineddownwardly and inwardly as at 17, the angle of inclination being of anydesired or suitable degree.

The lower end of the pedestal 11 is preferably reduced as at 18 and thereduced portion is provided with exterior screw threads 19, the pitch ofwhich threads 19'is less than the pitch of the threads 13, so that whenthe pedestal 11 is connected with the base 10 by inserting the reducedportion 18 of the pedestal into the opening 12 so that the threads 19and 13 will engage, the threads 13 will cause the threads 19 to Wedgewith respect to each other, as shown more clearly in Figure 1. Thiswedging action is assisted by reason of the fact that the flat surface20 of the pedestal 11 formed by the reduced portion 18 of the pedestaland encompassing such reduced portion will co-operate with the inclinedor beveled surface 1? of the base 10 encompassing the opening 12. Thiswill permit the parts to be wedged tightly together, resulting in arigid construction and at the same time insuring that the pedestal 11will be maintained in a true perpendicular or upright position withrespect to the base 10. The usual shade 21 may be supported by thepedestal 11 in the usual manner.

The pedestal 11 is provided with an opening 22therethrough for thereception of the light wires or cord 23 and to the end of which cords isconnected the plug 2e. In assembling or disassembling the pedestal andbase. it will be manifest that the plug 24: may be passed through theopening 12, so as to permit the parts to be knocked down for shipmentpurposes, and at the same time permits the cords or wire 23 to extendthrough the base of the pedestal and under the base which will be out ofthe way. The feet or supports 14 serve to hold the edge 15 above thesupporting surfaces so that the base will not rest upon the light cordor wire 23. 1 I

With this invention it will be manifest that a rigid construction willbe produr ed and at the same time the pedestal may be readily detachedfrom the base so that the lamp parts may be shipped or stored in aknocked down or separated condition.

While thepreferred form of the invention has been herein shown anddescribed, it is to be understood that various changes may be made inthe details of construction and in the combination and arrangement ofthe several parts, within the scope of the claim, Without departing fromthe spirit of this invention. 7

What is claimed as new is A lamp including a base having a threadedopening therein, the portion of the upper surface of the baseencompassing the opening being inclined downwardly and inwardly towardsthe opening, a pedestal, the lower extremity of the pedestal beingreduced to form a fiat substantially horizontal surface encompassingsaid reduced-portion, the said reduced portion adapted to enter theopening in the base, the threads in the pedestal engaging the threads inthe base, the co-operating threads serving to force the said fiat andinclined surfaces into contact, a light cord or wire connected with thepedestal and extending from'the end of the pedestal, and a plugconnected with the conductor, said plug being adapted to be passedthrough the opening in the base when the pedestal is connected anddisconnected from the base.

In testimony whereof I have signed my name to this specification-onthis19th day of January, A. D. 1924:.

JACOB MANDEL.

